Rapid descaling device and descaling treatment method thereof

Abstract

The invention discloses a rapid descaling device and a descaling treatment method thereof, and the descaling device comprises a pallial chute and a lining chute, wherein the lining chute is arranged in the pallial chute; the bottom end inside the pallial chute is provided with an ultrasonic sound board which is in contact fit with the bottom part of the lining chute; and the lining chute is internally provided with at least one heating pipe. The using method is as follows: a, injecting a proper amount of descaling solution in the lining chute, controlling the heat temperature of the heat pipe and setting the descaling time; b, placing a workpiece shelf loaded with workpieces in the lining chute, starting the ultrasonic sound board, and rapidly descaling the workpieces under the jointed action of descaling solution chemical etching and ultrasonic vibration; and c, taking the workpiece shelf out when the set descaling time is over, and stopping the descaling operation. The invention can effectively and rapidly remove oxide layers after valve thermal treatment with the descaling efficiency 2-3 times quicker than that of shot blast, and the processed valve surface has no cracks; the intrinsic defect on the valve surface is not covered after descaling treatment, so that the valve with the intrinsic defect can be selected to discard as soon as possible to avoid waste of subsequent machining.

Description

Technical field [0001] The invention relates to a rust removal device and a rust removal treatment method thereof, belonging to the technical field of workpiece rust removal, in particular to a quick rust removal device suitable for a valve and a rust removal treatment method thereof. Background technique [0002] The valve is a key component of the engine. Thermal oxide layer and microcracks are not allowed on its surface. The valve must be manufactured through heat treatment. The surface of the valve after heat treatment is prone to thermal oxide layer, and some surfaces are generally no longer mechanically processed. Use other methods to remove the thermal oxide layer. The traditional method of removing the thermal oxide layer is shot peening. The disadvantage is that the dust pollution is large, the valve surface is prone to micro-cracks, and the valve after shot peening will cover some surface defects, which cannot be found early, which may cause subsequent mechanical proces...

AI Technical Summary

Problems solved by technology

The traditional method of removing the thermal oxide layer is to use shot peening, which has the disadvantages of heavy dust pollution and microcracks on the surface of the valve, and the valve after shot peening will cover up some surface defects, which cannot be detected early, which may cause subsequent machining failures. waste

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